Technical Study
Radisson files NI 43-101 tech report for O'Brien PEA

RDS · Price
Executive Summary
- Radisson Mining Resources filed a NI 43‑101 technical report presenting a Preliminary Economic Assessment for the O’Brien Gold Project.
- The PEA shows an after‑tax NPV (5% discount) of $532 million, IRR of 48 %, and a 2‑year payback, based on a $2,550/oz gold price.
- Capital requirements are modest: $175 M initial capex and $173 M life‑of‑mine sustaining capital for an 11‑year mine life producing ~70,000 oz Au per year.
Key Details
- Economic Highlights
- After‑tax NPV (5%): $532 million
- Internal Rate of Return: 48 %
- Payback period: 2.0 years at $2,550/oz Au
- Cash cost: $861/oz; All‑in sustaining cost: $1,059/oz (includes 30 % toll‑milling margin)
-
NPV‑to‑initial‑capex ratio: 3.0
-
Capital & Production
- Initial capital cost: $175 million
- Life‑of‑mine sustaining capital: $173 million
- Mine life: 11 years
- Total ore mined: 740,000 oz, recovered: 647,000 oz (87 % average recovery)
- Steady‑state production (years 2‑8): 70,000 oz/yr
-
Average annual after‑tax free cash flow: $97 million
-
Project Design
- Utilizes existing regional milling facilities to reduce capex and footprint.
- Flowsheet: gravity‑flotation‑regrind‑leach.
-
Ongoing 50,000–60,000 m drill program expanding resource beyond current MRE.
-
Consultants & Qualified Persons
- Lead consultant (metallurgy, processing, financial model): Ausenco Engineering Canada ULC – Renee Barrette (QP).
- Mine design & scheduling: InnovExplo/Norda Stelo Inc. – Marc R. Beauvais (QP).
- Water management & permitting: BBA Inc. – Hugo Latulippe (QP).
- Mineral Resource Estimate: SLR Consulting (Canada) Ltd. – Luke Evans (QP).
-
Overall scientific/technical disclosure supervised by Richard Nieminen, PGeo (QC) (independent QP).
-
Resource Context
- Indicated resources: 580,000 oz (2.20 Mt @ 8.2 g/t Au).
-
Inferred resources: 930,000 oz (6.67 Mt @ 4.4 g/t Au).
-
Availability
- Full technical report accessible via Radisson’s SEDAR+ profile.
Notable Quotes
(No direct quotes were provided in the release.)
More from Radisson Mining Resources Inc.
Jul 07, 2026 · 06:32